jan 3, 1962 - Harry Hammond Hess
Description:
In the Navy Hess used a sonar where he figured out how the continents moved. He discovered that from the ocean Multan Basalt came up and destroyed the old seafloor and recycled it. The molten Basalt came from the mid-ocean ridge.Added to timeline:
Date:
jan 3, 1962
Now
~ 62 years ago
